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http://dx.doi.org/10.6109/jkiice.2011.15.2.425

Harmonic Reduction of Electric Propulsion Ship by Multipulse Drive  

Kim, Jong-Su (한국해양대학교)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.15, no.2, 2011 , pp. 425-431 More about this Journal
Abstract
The harmonic distortion level may be significant in electric propulsion systems, as the main loads usually are variable speed propulsion/thruster drives. Distortion of currents and supply voltage waveforms may lead to: Increased power dissipation(losses) in equipment connected to the network, such as generators, motors, transformers, cables, etc., from the harmonic currents, may cause overheating and deterioration of the insulation, and reduced life time of the equipment. In this paper introduced the canceling method of harmonic currents by a multipulse drive with phase shifting transformer. The simulation results indicated a good speed response to the middle speed range of electric propulsion motor. And also, THD(total harmonic distortion) and torque ripple could be reduced in comparing the 12-pulse drive with 6-pulse drive.
Keywords
Harmonic; Multipusle; Phase shifting; Propulsion motor; THD(total harmonic distortion); Torque ripple;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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